Mitsubishi Evolution X. Manual - part 589

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-263

12

Receiver antenna module CLOCK 
output

• When communicating with the 

keyless operation key with the 
emergency key inserted in the 
inverted direction (ignition 
switch: ON)

• Keyless operation key lock 

button, unlock button, and trunk 
lid button: ON

0 to 5 V (pulse signal)

Receiver antenna assembly 
CLOCK output

13

Receiver antenna module power 
control

Ignition switch: OFF

0 to 5 V (pulse signal)

Receiver antenna assembly power 
control

14

Ground

Always

0 V

15

−

−

−

16

Interior transmitter antenna 
assembly (front) signal output

When IG push switch is pressed

0 to 5 V (pulse signal) 
or 0 to 8 V (pulse 
signal)

17

Exterior transmitter antenna 
assembly (driver's side) signal 
output

When the front door outside 
handle (driver's side) is gripped, or 
when the lock switch (driver's 
side) is pressed

0 to 8 V (pulse signal)

18

Exterior transmitter antenna 
assembly (front passenger's side) 
signal output

When the front door outside 
handle (front passenger's) is 
gripped, or when the lock switch 
(front passenger's) is pressed

0 to 8 V (pulse signal)

19

Exterior transmitter antenna 
assembly (trunk lid) signal output

When trunk lid opener switch is 
pressed

0 to 8 V (pulse signal)

20

Interior transmitter antenna 
assembly (rear) signal output

When IG push switch is pressed

0 to 5 V (pulse signal) 
or 0 to 8 V (pulse 
signal)

21

Lock switch (driver's side) output

Lock switch: ON

0 V

22

−

−

−

23

Lock switch (front passenger's side) 
output

Lock switch: ON

0 V

24

Unlock sensor (driver's side) signal 
output

When the front door outside 
handle (driver's side) is grasped

0 V

25

Unlock sensor (front passenger's 
side) signal output

When the front door outside 
handle (front passenger's side) is 
grasped

0 V

26, 27

−

−

−

28

Trunk lid opener switch output

Trunk lid opener switch: ON

0 V

29, 30

−

−

−

31

Steering lock unit ground

Always

0 V

32

Receiver antenna module ground

Always

0 V

Receiver antenna assembly ground

Terminal 
number

Check item

Check condition

Normal condition

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-264

33

−

−

−

34

Push switch inside the steering lock 
power supply

Push switch inside the steering 
lock: OFF

12V

35

Output to outer tone alarm (-)

Outer tone alarm is sounding

0 to 12 V (pulse signal)

36

Unlock sensor (driver's) power 
supply

Always

0 to 10 V (pulse signal)

Unlock sensor (front passenger's 
side) power supply

37

Output to outer tone alarm (+)

Outer tone alarm is sounding

0 to 12 V (pulse signal)

38

Battery power supply

Always

Battery voltage

39

Power supply from ignition switch 
(IG1)

Ignition switch: ON

Battery voltage

40

Interior transmitter antenna 
assembly (front) power supply

• At the door switch operation

• At the ignition switch operation

• At door open/close

5 V 

Interior transmitter antenna 
assembly (rear) power supply
Exterior transmitter antenna 
assembly (driver's side) power 
supply

8 V 

Exterior transmitter antenna 
assembly (front passenger's side) 
power supply
Exterior transmitter antenna 
assembly (trunk lid) power supply

Terminal 
number

Check item

Check condition

Normal condition

ON-VEHICLE SERVICE

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-265

ON-VEHICLE SERVICE

ID CODES REGISTRATION PROCEDURES

M1429611700242

REGISTRATION USING SCAN TOOL MB991958 
(M.U.T.-III SUB ASSEMBLY)

Required Special Tools:

•  MB991958 Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827 M.U.T.-III USB Cable

• MB991910 M.U.T.-III Main Harness A

By operating the scan tool MB991958 (M.U.T.-III sub assembly) 
screen, the ID code registration and the TPMS can be regis-
tered and antenna communication required to the keyless oper-
ation system can be performed. KOS and keyless operation 
key are indicated as F.A.S.T and F.A.S.T.-key respectively in 
the scan tool MB991958 (M.U.T.-III sub assembly) screen.

CAUTION

Do not register the keyless operation key registered for 
other vehicles.

SUPPLY UNIT LIST FOR INDIVIDUAL KEY

KEY SUPPLY UNIT LIST FOR OTHER THAN INDIVIDUAL KEY

KOS emergency key

KOS key

AC610642

AC709685

Full service key set

Handle lock service key set

AC610158

AC610159

ON-VEHICLE SERVICE

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-266

NOTE: 

.

•

When re-registering the key (key ID and keyless operation 
key ID), all the keys (key ID and keyless operation key ID) 
registered before must be re-registered because all of them 
will be erased.

•

For registration, the keyless operation key and the emer-
gency key are needed.

•

If the registration fails, repeat from the start.

•

After the keyless operation key is registered, start the 
engine with all the keys and keyless operation keys, and 
check that KOS operates normally.

Door service key set

NOTE: Key (It is the key that comes with the door 
service key set. It can only be used for locking 
and unlocking, and it cannot start the engine.)

AC610062

AC607881